Take-up for sewing-machines.



No. 827,652. PATENTED JULY 31, 1906. L. ONDERDONK.

TAKE-UP FOR SEWING MACHINES.

APPLICATION FILED JUL Y8,1904.

3 SHEETS-SHEET 1 W1 71 25555; 1 NVENTOR Y Altorney N0. 827,662.PATENTEDJULY 81, 1906.

L. ONDERDONK. TAKE-UP FOR SEWING MAGHINES..

APPLIGATION FILED JULY 8, 1-904.

8 SHEBTSSHEET 2.

2 lvitweoom No. 827,652. PATENTED JULY 81, 1906. L. ONDERDONK. TAKB UPFOR SEWING MAUHINE$.

APPLICATION FILED JULY8,1904.

3 SHEETS-SHEET Ii.

Sum-Am witmwaco atto'wwag producin slack, and thus the take-uphas a.

second id e'niovement. It will be noted that the controller is connectedto the presser-bar the threadaeyes 11 and 12' to move downward,

, and-Ithe take-up arm will then travel over a {greater distance abovethe "consequently pull off more thread from the controller, and

supply. Thus it will be seen that the amount of thread supplied isregulated by the thickness of the .work. v

I will now describe the means for controlling the-slack thread duringtheidle move ments of the take-up. In the arm of the machine is theusual rotary shaft. Rigidly secured to the end of this shaft isitheslackthread 'controller S. Said controller is secured to the shaft bythe screw 13. The controller carries a crank-pin 14, which is eccentrically disposed relative to the rotating shaft, and a link 1 connectssaid crank-pin 14 with the needle bar N for operating the same. Fixed tothe head of the machine is a threadguiding arm A, which is bent at itsfree end to embrace the 'path of movement of the threadcontroller andhas two thread-eyes 15 and 16, through which the thread-is led from thetension to .the stitch-controller and take-up. Said slack-threadcontroller is formed with two oppositely-disposed cam-shapedthreadengaging surfaces. One of these surfaces engages the thread,between the thread-eyes 15 and 16, taking up the slack given up by thetake-up in one of its idle movements, and the other engages the thread,taking up the slack durin the other idle movement of the tak-up.

' under positive control, the machine 1s It Wil thus beapparent that thethread is under constant control, the slack-thread controllercontrolling the slack in the needlethread between the tension and thestitch in the goods While the same is not under the control of thetake-up. The thread being especially adapted" for high-speed Work.

While I have described the preferred form of the invention, I do notwish to be limited to the details described and shownin the drawings,asmany modifications will suggest themselves to one skilled in the art towhich it appertains without departing from the spirit of my invention.

Having thus described my invention, what 'I claim asnew, and desire tosecure by Letters Patent, isa 4 F 1.- The combination of atake-up,thread-- through said i has two three guides cooperating therewith,means for re ciproca'ting said take-up across a line passing ides,whereby said take-up g drawing and two idle movements during eachreciprocation thereof, and a slack-thread controller having separatemeans for positively and independently controlling the thread duringeach of the idle movements of the take up; substantially as described. p

2. The combination of a take-up, a stitchcontroller connected to thepresserfoot and having thread-guides cooperating with the take-up, meansfor reciprocating said take-'up across a line passing through saidguides, whereby said take-up has two thread-drawing and two idlemovements during each re .ciprocation thereof, and positively-operatedmeans for controlling the slack in the thread during the idle movementsof the takeup,' substantially as described.

3. The combination of a take-up, a stitch controller connected to theresser-foot and having thread-guides cooperating with the take-up, meansfor reciprocating said take-up across a line passing through saidguides, whereby said take-up has two thread-drawing and two idlemovements during each re ciprocatioh thereof, a slack-thread controllerhaving separate means for positively and independently controlling thethread during each of the idle movements of the take-up; substantiallyas described.

4}. The combination of a take-up, a stitchcontroller connected to thepresser-foot and having thread-guides cooperating with the take-up,means for reciprocating said take-up across a line passing through saidguides, whereby saidtake-up has two thread-drawing and two idlemovements during'each re ciprocation thereof, a rotary slaclethreadcontroller having separate and oppositely disposed portions forcontrolling the slack thread, and stationary thread-eyes cooperatingwith said controller; substantially as described.

5. The combination with a rotary shaft, of a slaclcthread controllercarried thereby, a needle-bar, a crank-pin carried by said controller, alink connecting said crank-pin and needle-bar, and a stationarythread-guide cooperating with said controller; substantially asdescribed.

6. The combination with a rotary shaft, of a slack-thread controllersecured to the end of said shaft, a needle-bar, a crank-pin carried bysaid controller, a link connecting said crank-pin and needle-bar, and astationary threa -guide cooperating with said controller substantiallyas described.

7. The combination with a rotary shaftfof' a slack-thread controllersecured to the end of said shaft, a needle-bar, a crank-pin carried bysaid controller, a link connecting said crank-pin and needle-bar, atake-up carried by the needle-bar, and thread-guides cooper-v ating withsaid take-up substantiallyias described. A 8. The combination with arotary shaft, of a slack-thread controller secured to the end

